Pressure Washer Leaking Water

The part(s) or condition(s) listed below for the symptom Pressure washer leaking water are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Pressure washer leaking water

You may need to rebuild or replace the pump assembly. If the pump is more than a few years old, and you use the pressure washer fairly often, replace the pump assembly. If the pump is relatively new, and you don’t use the pressure washer often, either rebuild the pump assembly or replace the pump seals.

Parts

Pump Assembly

Please enter your model number so we can show you the part that fits your exact model

Where is my model number?Your model number is on a plate, in one of these locations:

Handy tip - Make it easy on yourself! Use your smart phone to take a picture of the model number tag.

Cause 2Pump

You may need to rebuild or replace the pump. If the pump is more than a few years old, and you use the pressure washer fairly often, replace the pump. If the pump is relatively new, and you don’t use the pressure washer often, either rebuild the pump or replace the pump seals.

Parts

Pump

Please enter your model number so we can show you the part that fits your exact model

Where is my model number?Your model number is on a plate, in one of these locations:

Handy tip - Make it easy on yourself! Use your smart phone to take a picture of the model number tag.

Cause 3Thermal Release Valve

The leak could be due to the normal operation of the thermal release valve. The thermal release valve allows hot water to exit the pressure washer if the water temperature becomes excessively high. If the pressure washer is left running while it is not spraying water, the water in the pump will begin to heat up. When the water temperature rises above the acceptable limit, the thermal release valve opens to allow the hot water to exit the pressure washer.

Parts

Thermal Release Valve

Please enter your model number so we can show you the part that fits your exact model

Where is my model number?Your model number is on a plate, in one of these locations:

Handy tip - Make it easy on yourself! Use your smart phone to take a picture of the model number tag.